personally i would not take the 8-bit feel out of the game: is one of those I did grew up with on spectrum (even tough due to language barrier at the time did not understood what to do) and have music AND effects would make it special; that is why i chose to use chip two voices, also because i have no clue how many voices are used by effects and keep just two busy should keep enough FX around - and also to possibly master two voice extreme tracking 'a la' Iveson/Nuke in Wolfchild, he did a miracolous job there ^^